浙江农业学报 ›› 2016, Vol. 28 ›› Issue (12): 2068-2075.DOI: 10.3969/j.issn.1004-1524.2016.12.16

• 植物保护 • 上一篇    下一篇

Pal基因拟南芥对根际土壤细菌群落的影响

刘丹, 吴凤芝*   

  1. 东北农业大学 园艺学院,黑龙江 哈尔滨 150030
  • 收稿日期:2016-05-12 出版日期:2016-12-15 发布日期:2017-01-05
  • 通讯作者: 吴凤芝,E-mail: fzwu2006@aliyun.com
  • 作者简介:刘丹(1984—),女,黑龙江牡丹江人,博士研究生,从事植物分子生物学研究。E-mail:mdjliudan@126.com
  • 基金资助:
    国家自然科学基金项目(31172002)

Effect of phenylalanine ammonialyase transgenic Arabidopsis thaliana on bacterial community in rhizosphere soil

LIU Dan, WU Feng-zhi*   

  1. Department of Horticulture, Northeast Agricultural University, Harbin 150030, China
  • Received:2016-05-12 Online:2016-12-15 Published:2017-01-05

摘要: 利用 Miseq测序技术研究了转苯丙氨酸解氨酶基因(Pal)拟南芥对其根际土壤细菌群落结构和多样性的影响。结果表明,转Pal基因拟南芥土壤细菌Chao指数显著高于突变体和野生型;从Shannon和Simpson指数来看,转Pal基因拟南芥根际土壤细菌的群落多样性显著高于野生型和突变体;转Pal基因处理与突变体相比,在门水平上变形菌门(Actinobacteria)的相对丰度增加,在纲水平上α-变形菌纲(Alphaproteobacteria)的相对丰度增加;转Pal基因拟南芥起作用的主要类群为变形菌门(Proteobacteria)、蓝藻菌门(Cyanobacteria)、绿弯菌门(Chloroflexi)、α-变形菌纲(Alphaproteobacteria)、δ-变形菌纲(Deltaproteobacteria)、粘球菌目(Myxococcales)等。转基因拟南芥根系可能促进或抑制具有某些特定生理特征的根际微生物种群,从而改变了土壤细菌群落的结构和多样性。

关键词: 转基因拟南芥, 细菌, 群落结构, 多样性

Abstract: The effect of phenylalanine ammonialyase (Pal) transgenic Arabidopsis thaliana on the bacterial structure and diversity in rhizosphere soil was studied by Miseq method. The results showed that the Chao index for the bacterial communities was calculated, and was significantly higher in the rhizospheres collected from the AcPal+ transgenic Arabidopsis than the ones collected from the Pal- mutant Arabidopsis or wild type Arabidopsis. The Shannon diversity index and Simpson index for the bacterial communities were calculated, and both community diversity were significantly higher in the rhizospheres collected from the AcPal+ transgenic Arabidopsis than the ones collected from the Pal- mutant Arabidopsis or wild type Arabidopsis. The Actinobacteria relative abundances were increased at phylum levels, as well as Alphaproteobacteria relative abundances at class levels from the AcPal+ transgenic Arabidopsis than those from the Pal- mutant Arabidopsis. Major microbial groups of AcPal+ transgenic Arabidopsis are Proteobacteria, Cyanobacteria, Chloroflexi, Alphaproteobacteria, Deltaproteobacteria, Myxococcales etc. It indicated that the transgenic Arabidopsis roots might promote or inhibit the development of certain physiological characteristics of the bacterial community, and hence a change in the structure and diversity of the soil microbial communities.

Key words: transgenic Arabidopsis thaliana, bacteria, community structure, diversity

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